为获得一种分散性好、载体酸性易调变和高热稳定性的新型催化材料，该研究采用插层法和原位法制备NiAl-LDH/MMT复合材料，并借助XRD、IR、TG-DTA、BET、SEM等手段对合成材料进行了表征。插层法是先将NiAl-LDH 进行剥离形成带正电荷的无机层片，然后与蒙脱土进行插层复合；原位法是先将蒙脱土的层间阳离子Na+交换为Ni2+和Al3+，然后加碱使Ni2+、Al3+在蒙脱土层间反应生成 NiAl-LDH。结果表明，两种方法均合成出了晶型良好的复合材料，形成单层 LD H 层板与单层蒙脱土层板交替排列结构；复合材料的LDH 层板羟基脱除温度达525℃。
To obtain a new catalytic materials with good dispersion,easy acid modulation of carrier and high thermal stability,the composites of NiAl-LDH/MMT was prepared respectively by intercalation method and in situ method.The compounds was characterized by XRD,IR,TG-DTA,BET and SEM measurement.The in-tercalation method was as follows.First,exfoliated the NiAl-LDH to get the LDH layers,then inserted the ex-foliated NiAl-LDH layers into the interlayers of MMT.The in situ method was first to change the Na-MMT in-to NiAl-MMT,then add alkali into NiAl-MMT fluid to form a composite.The results showed that both of the two methods could prepared composites with good crystallization.The LDH layers and MMT layers were layer by layer staggered alternately.The LDH layer’s hydroxyl removal temperature of the composites reached 525℃.
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